Show the halides of aluminium, Q. Show the Halides of Aluminium? All th...

Q. Show the Halides of Aluminium? All the four trihalides of aluminium, i.e. AIF 3 , AICI 3 ,, AlBr 3 , and AlI 3 , are known. AIF 3 ,  is made by treating Al 2 0 3 with HF ga

Calculate the heat flow by a wall - heat conductivity, Heat Conductivity ...

Heat Conductivity When considering the design of houses, the heat conductivity by walls, roofs, and the floor plays an significant role. The heat conductivities (λ) of some bui

Ionic bond,

How could lipids and proteins form lipoproteins, How could lipids and prote...

How could lipids and proteins form lipoproteins, stable superstructures which can be simply transported in blood? How would    a) cholesterol       b) esters of cholester

Main physical properties of hydrogen sulphide, Question 1: (i) What ar...

Question 1: (i) What are the main physical properties of hydrogen sulphide? (ii) Which occupational group of workers is often exposed to hydrogen sulphide? (iii) O

Estimation of elements, examples

examples

Bohr''s model can explain, Bohr's model can explain : (1) The spectrum o...

Bohr's model can explain : (1) The spectrum of hydrogen atom only    (2) Spectrum of atom or ion containing one electron only  (3) The spectrum of hydrogen molecule  (4

PERIODIC TABLE, LIST METALIC AND NON METALIC ELEMENTS

LIST METALIC AND NON METALIC ELEMENTS

Lassaigne method, Lassaigne method This is employed to detect halogen, ...

Lassaigne method This is employed to detect halogen, nitrogen and sulphur. Organic compounds are fused along with dry sodium in a fusion-tube and fused mass after extraction wi

Define post-harvest treatments, Post-harvest treatments Certain post-ha...

Post-harvest treatments Certain post-harvest treatments to fruits and vegetables can bring down spoilage significantly. A wide range of chemicals used to control post-harvest d